diff options
author | José Fonseca <jfonseca@vmware.com> | 2010-01-08 15:42:57 +0000 |
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committer | José Fonseca <jfonseca@vmware.com> | 2010-01-08 15:42:57 +0000 |
commit | 080c40ab32b2abd6d8381b4a0cc143d36a1652b2 (patch) | |
tree | e173767ebc5a82d81b9fc086449d915e29348976 /src/gallium/drivers/svga/svga_screen_cache.c | |
parent | 9cdf6f025b2ed55cfb13dd09f870f01d0c7947d3 (diff) | |
parent | a1de400e8de06a80ab140bb0fa950e990607572d (diff) |
Merge remote branch 'origin/master' into lp-binning
Conflicts:
src/gallium/auxiliary/util/u_surface.c
src/gallium/drivers/llvmpipe/Makefile
src/gallium/drivers/llvmpipe/SConscript
src/gallium/drivers/llvmpipe/lp_bld_arit.c
src/gallium/drivers/llvmpipe/lp_bld_flow.c
src/gallium/drivers/llvmpipe/lp_bld_interp.c
src/gallium/drivers/llvmpipe/lp_clear.c
src/gallium/drivers/llvmpipe/lp_context.c
src/gallium/drivers/llvmpipe/lp_context.h
src/gallium/drivers/llvmpipe/lp_draw_arrays.c
src/gallium/drivers/llvmpipe/lp_jit.c
src/gallium/drivers/llvmpipe/lp_jit.h
src/gallium/drivers/llvmpipe/lp_prim_vbuf.c
src/gallium/drivers/llvmpipe/lp_setup.c
src/gallium/drivers/llvmpipe/lp_setup_point.c
src/gallium/drivers/llvmpipe/lp_state.h
src/gallium/drivers/llvmpipe/lp_state_blend.c
src/gallium/drivers/llvmpipe/lp_state_derived.c
src/gallium/drivers/llvmpipe/lp_state_fs.c
src/gallium/drivers/llvmpipe/lp_state_sampler.c
src/gallium/drivers/llvmpipe/lp_state_surface.c
src/gallium/drivers/llvmpipe/lp_tex_cache.c
src/gallium/drivers/llvmpipe/lp_tex_cache.h
src/gallium/drivers/llvmpipe/lp_tex_sample.h
src/gallium/drivers/llvmpipe/lp_tile_cache.c
Diffstat (limited to 'src/gallium/drivers/svga/svga_screen_cache.c')
-rw-r--r-- | src/gallium/drivers/svga/svga_screen_cache.c | 347 |
1 files changed, 347 insertions, 0 deletions
diff --git a/src/gallium/drivers/svga/svga_screen_cache.c b/src/gallium/drivers/svga/svga_screen_cache.c new file mode 100644 index 0000000000..eff36e0bcc --- /dev/null +++ b/src/gallium/drivers/svga/svga_screen_cache.c @@ -0,0 +1,347 @@ +/********************************************************** + * Copyright 2008-2009 VMware, Inc. All rights reserved. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + **********************************************************/ + +#include "util/u_memory.h" +#include "util/u_hash.h" + +#include "svga_debug.h" +#include "svga_winsys.h" +#include "svga_screen.h" +#include "svga_screen_cache.h" + + +#define SVGA_SURFACE_CACHE_ENABLED 1 + + +/** + * Compute the bucket for this key. + */ +static INLINE unsigned +svga_screen_cache_bucket(const struct svga_host_surface_cache_key *key) +{ + return util_hash_crc32( key, sizeof *key ) % SVGA_HOST_SURFACE_CACHE_BUCKETS; +} + + +static INLINE struct svga_winsys_surface * +svga_screen_cache_lookup(struct svga_screen *svgascreen, + const struct svga_host_surface_cache_key *key) +{ + struct svga_host_surface_cache *cache = &svgascreen->cache; + struct svga_winsys_screen *sws = svgascreen->sws; + struct svga_host_surface_cache_entry *entry; + struct svga_winsys_surface *handle = NULL; + struct list_head *curr, *next; + unsigned bucket; + unsigned tries = 0; + + assert(key->cachable); + + bucket = svga_screen_cache_bucket(key); + + pipe_mutex_lock(cache->mutex); + + curr = cache->bucket[bucket].next; + next = curr->next; + while(curr != &cache->bucket[bucket]) { + ++tries; + + entry = LIST_ENTRY(struct svga_host_surface_cache_entry, curr, bucket_head); + + assert(entry->handle); + + if(memcmp(&entry->key, key, sizeof *key) == 0 && + sws->fence_signalled( sws, entry->fence, 0 ) == 0) { + assert(sws->surface_is_flushed(sws, entry->handle)); + + handle = entry->handle; // Reference is transfered here. + entry->handle = NULL; + + LIST_DEL(&entry->bucket_head); + + LIST_DEL(&entry->head); + + LIST_ADD(&entry->head, &cache->empty); + + break; + } + + curr = next; + next = curr->next; + } + + pipe_mutex_unlock(cache->mutex); + + if (SVGA_DEBUG & DEBUG_DMA) + debug_printf("%s: cache %s after %u tries (bucket %d)\n", __FUNCTION__, + handle ? "hit" : "miss", tries, bucket); + + return handle; +} + + +/* + * Transfers a handle reference. + */ + +static INLINE void +svga_screen_cache_add(struct svga_screen *svgascreen, + const struct svga_host_surface_cache_key *key, + struct svga_winsys_surface **p_handle) +{ + struct svga_host_surface_cache *cache = &svgascreen->cache; + struct svga_winsys_screen *sws = svgascreen->sws; + struct svga_host_surface_cache_entry *entry = NULL; + struct svga_winsys_surface *handle = *p_handle; + + assert(key->cachable); + + assert(handle); + if(!handle) + return; + + *p_handle = NULL; + pipe_mutex_lock(cache->mutex); + + if(!LIST_IS_EMPTY(&cache->empty)) { + /* use the first empty entry */ + entry = LIST_ENTRY(struct svga_host_surface_cache_entry, cache->empty.next, head); + + LIST_DEL(&entry->head); + } + else if(!LIST_IS_EMPTY(&cache->unused)) { + /* free the last used buffer and reuse its entry */ + entry = LIST_ENTRY(struct svga_host_surface_cache_entry, cache->unused.prev, head); + SVGA_DBG(DEBUG_CACHE|DEBUG_DMA, + "unref sid %p (make space)\n", entry->handle); + sws->surface_reference(sws, &entry->handle, NULL); + + LIST_DEL(&entry->bucket_head); + + LIST_DEL(&entry->head); + } + + if(entry) { + entry->handle = handle; + memcpy(&entry->key, key, sizeof entry->key); + + SVGA_DBG(DEBUG_CACHE|DEBUG_DMA, + "cache sid %p\n", entry->handle); + LIST_ADD(&entry->head, &cache->validated); + } + else { + /* Couldn't cache the buffer -- this really shouldn't happen */ + SVGA_DBG(DEBUG_CACHE|DEBUG_DMA, + "unref sid %p (couldn't find space)\n", handle); + sws->surface_reference(sws, &handle, NULL); + } + + pipe_mutex_unlock(cache->mutex); +} + + +/** + * Called during the screen flush to move all buffers not in a validate list + * into the unused list. + */ +void +svga_screen_cache_flush(struct svga_screen *svgascreen, + struct pipe_fence_handle *fence) +{ + struct svga_host_surface_cache *cache = &svgascreen->cache; + struct svga_winsys_screen *sws = svgascreen->sws; + struct svga_host_surface_cache_entry *entry; + struct list_head *curr, *next; + unsigned bucket; + + pipe_mutex_lock(cache->mutex); + + curr = cache->validated.next; + next = curr->next; + while(curr != &cache->validated) { + entry = LIST_ENTRY(struct svga_host_surface_cache_entry, curr, head); + + assert(entry->handle); + + if(sws->surface_is_flushed(sws, entry->handle)) { + LIST_DEL(&entry->head); + + svgascreen->sws->fence_reference(svgascreen->sws, &entry->fence, fence); + + LIST_ADD(&entry->head, &cache->unused); + + bucket = svga_screen_cache_bucket(&entry->key); + LIST_ADD(&entry->bucket_head, &cache->bucket[bucket]); + } + + curr = next; + next = curr->next; + } + + pipe_mutex_unlock(cache->mutex); +} + + +void +svga_screen_cache_cleanup(struct svga_screen *svgascreen) +{ + struct svga_host_surface_cache *cache = &svgascreen->cache; + struct svga_winsys_screen *sws = svgascreen->sws; + unsigned i; + + for(i = 0; i < SVGA_HOST_SURFACE_CACHE_SIZE; ++i) { + if(cache->entries[i].handle) { + SVGA_DBG(DEBUG_CACHE|DEBUG_DMA, + "unref sid %p (shutdown)\n", cache->entries[i].handle); + sws->surface_reference(sws, &cache->entries[i].handle, NULL); + } + + if(cache->entries[i].fence) + svgascreen->sws->fence_reference(svgascreen->sws, &cache->entries[i].fence, NULL); + } + + pipe_mutex_destroy(cache->mutex); +} + + +enum pipe_error +svga_screen_cache_init(struct svga_screen *svgascreen) +{ + struct svga_host_surface_cache *cache = &svgascreen->cache; + unsigned i; + + pipe_mutex_init(cache->mutex); + + for(i = 0; i < SVGA_HOST_SURFACE_CACHE_BUCKETS; ++i) + LIST_INITHEAD(&cache->bucket[i]); + + LIST_INITHEAD(&cache->unused); + + LIST_INITHEAD(&cache->validated); + + LIST_INITHEAD(&cache->empty); + for(i = 0; i < SVGA_HOST_SURFACE_CACHE_SIZE; ++i) + LIST_ADDTAIL(&cache->entries[i].head, &cache->empty); + + return PIPE_OK; +} + + +struct svga_winsys_surface * +svga_screen_surface_create(struct svga_screen *svgascreen, + struct svga_host_surface_cache_key *key) +{ + struct svga_winsys_screen *sws = svgascreen->sws; + struct svga_winsys_surface *handle = NULL; + boolean cachable = SVGA_SURFACE_CACHE_ENABLED && key->cachable; + + SVGA_DBG(DEBUG_CACHE|DEBUG_DMA, + "%s sz %dx%dx%d mips %d faces %d cachable %d\n", + __FUNCTION__, + key->size.width, + key->size.height, + key->size.depth, + key->numMipLevels, + key->numFaces, + key->cachable); + + if (cachable) { + if (key->format == SVGA3D_BUFFER) { + /* For buffers, round the buffer size up to the nearest power + * of two to increase the probability of cache hits. Keep + * texture surface dimensions unchanged. + */ + uint32_t size = 1; + while(size < key->size.width) + size <<= 1; + key->size.width = size; + /* Since we're reusing buffers we're effectively transforming all + * of them into dynamic buffers. + * + * It would be nice to not cache long lived static buffers. But there + * is no way to detect the long lived from short lived ones yet. A + * good heuristic would be buffer size. + */ + key->flags &= ~SVGA3D_SURFACE_HINT_STATIC; + key->flags |= SVGA3D_SURFACE_HINT_DYNAMIC; + } + + handle = svga_screen_cache_lookup(svgascreen, key); + if (handle) { + if (key->format == SVGA3D_BUFFER) + SVGA_DBG(DEBUG_CACHE|DEBUG_DMA, + "reuse sid %p sz %d (buffer)\n", handle, + key->size.width); + else + SVGA_DBG(DEBUG_CACHE|DEBUG_DMA, + "reuse sid %p sz %dx%dx%d mips %d faces %d\n", handle, + key->size.width, + key->size.height, + key->size.depth, + key->numMipLevels, + key->numFaces); + } + } + + if (!handle) { + handle = sws->surface_create(sws, + key->flags, + key->format, + key->size, + key->numFaces, + key->numMipLevels); + if (handle) + SVGA_DBG(DEBUG_CACHE|DEBUG_DMA, + " CREATE sid %p sz %dx%dx%d\n", + handle, + key->size.width, + key->size.height, + key->size.depth); + } + + return handle; +} + + +void +svga_screen_surface_destroy(struct svga_screen *svgascreen, + const struct svga_host_surface_cache_key *key, + struct svga_winsys_surface **p_handle) +{ + struct svga_winsys_screen *sws = svgascreen->sws; + + /* We only set the cachable flag for surfaces of which we are the + * exclusive owner. So just hold onto our existing reference in + * that case. + */ + if(SVGA_SURFACE_CACHE_ENABLED && key->cachable) { + svga_screen_cache_add(svgascreen, key, p_handle); + } + else { + SVGA_DBG(DEBUG_DMA, + "unref sid %p (uncachable)\n", *p_handle); + sws->surface_reference(sws, p_handle, NULL); + } +} |